Brake-shoe controller.



W, G. PRICE.

BRAKE SHOE'GONTROLLER. APPLICATION FILED JUNE 2a. 1908 Patented Nov. 26, 1912.

2 SHEETSr-SHEET 1.

mag-:9

C V L aim:

WITNESSES. & W

W. G. PRICE.

BRAKE SHOE CONTROLLER. APPLICATION FILED JUNE 26, 1908.

Patented Nov. 26, 1912.

INVENTOR;

WITNESSES. I

W Fh-CA,

j. 0%. fma i .e xact description thereof." -M ,mvention relates to 'claim' e mum cm rams, or NEW cas'rm, :enmtairmranral v lsnaxn-snoncomnonnnn. A

'a, resident;of New Castle,- in the county of Lawrence airs State'of'Pennsylvania, have 5 mventedia new and useful Improvement in Brake-Shoe Controllers and I do hereby declare the following to a full, clear, and

termed a brake shoe controller that .is, a device for controlling the movement of the brake 'shoeso that it will bewithdrawn-from the. wheel'fin such a manner as not to drag.

atialn poiiit gwhile at'the same time the shoe wi drawalf from the w operating a slack adj uster for carbrakes for It-was anted Letters Patent of the -UriitedJStates' 0. 872,540, December 3', 1907.

eatiires hereinafter set forth and egldecompanying drawin s Figure 1 isa plan view of a portion a common" 26 form of truckto which my invention is aplied; Fi 2 is asection on'the line 22, ig.. 1,; 1g. 3.is an enlarged detail of the brake beams 'andfrictional devices; Fig. 4 is an'end view of the same; Fig. 5 isa vert what .may be.

"momentarily-retarded in its .witheel for the purpose of" :e ends my invention comprises the bolts passing through the slots 13. A spring 1,045,180; s me w man; Patented Nov. 26, 1912;

' f Application a June 26,1998; serial no. erases.

. To all :whom it my 4 l I connect the bar 12 tothe supports 8, said Be 1t lmown that *1, WILLIAM Ga Prion,

.16 is mterposed between a washer 17 and a nut 18' on the bolt 15 A lock nut 20 may be applied to the bolt 15 hearing against the nut In this manner the bar 12 is held 1n fr1ctional contact withthe supports 8 and thlsfrictional contact may be increased or d m nished by means of the nut 18. At the Same time the supports 8 are free tomove back and-forth along the bar-12 when the brake beams are advanced or withdrawn in the operation of the brakes.

Inthe operation of my invention when the brakes are released the friction created by the supports 8 moving in contact with the bar- 12 will tend to momentarily resist the-withdrawal o-f-the brake shoes from the wheels, while at the same time the brake shoes are moved outwardly at all points simultaneously so that there is .no dragging of any portion of the shoe upon the wheel. This is due to the-guiding action of the guides on the bar 12 which hold the brake beams'from being tilted or canted by the Wei ht of the live and dead levers, as, well as t e brake shoes which are all to one side of the brake beam hangers and which consequently' tend to tilt or rotate the said beams. The momentary retardation of the onlsection of a truck showing a. modified form of my invention; and Figs. 6 and 7 are detailsofsaid modification. v

- I hlveill ted my invention as apphed to'a;motor truck of-common construction as and have not deemed it necessary to 1llustr'a-te or describe all'the parts which go to make u the truck as such parts form no- "part 0 my invention except generally as they go to make up the .truck to which the .40 invention is shown as'apphed.

l 'T-he brakebeams 2 support the l ve and dead levers 3 and 4 in the ordinary manner.

Brake heads 5 are securedto the'ends' of the brake beams 2 and secured within said brake 4,5 heads'arethe brake shoes 6, adapted to be advanced toward and withdrawn from the wheels 7. Projectin 2 are the b'rac ets or sup orts ,8, said rts 'beingformed with t e threaded 9 which pass up through opemngs 10 3 in the brake beams-and nuts-11 are screwed 'iwtojlid studs. manner the an formed therein. Bolts down from the brake.

-.8 m securely held in position onem beams 2. A frictional member or bar i r the sup rts 8; said-bar having.

on the bolts 24 and 25 which connect the links 26' tot-he hanger 27 and to the brake beams '5. These springs 23' act to 1nomen-' tarilyretard the withdrawal of the brake heads and this frictional deviceiis covered by Letters Patent of the 'United States granted to me on, the 245th day of April,

1906,-No. 818,639. I thus provide a br ake' beam suspended fromthe'hangers with friction devices above and below the same so thatthe frictional resistance is e'v distributed and the more even withdraw of the' brake shoe is ob 115 ofthe'bars 31'and springs 39 areinterposed 'f15 nation of shoe supporting devices-arranged In-Fig -5 Ihave illustrated thy-invention as apphedto atruckin" which .brake beams are not employed but in which the. brake heads and -shoes are snppo'r'tedby the 5 hangers 28 depending from the brackets 29.

' tis-case I employ-two bars 3 0an'd 31,;

saiii bars being. IQYldQd with the' slots 32 and the bolt oles 33; ,Bolts 34,-" pass through the bolt holes 33' and secure the bars to the jbrakejheeds 36 and'elso snpportthe hve and dead levers 3' and 4! The bin-s andBI ere held in contact with" each other and bolts 37 Hp'ass through the slots 32. Washers 38 are provided on opposite sides between the inner washers zind the nntsetO .on the boltsIn the'sa-lnemanner as fabove described, when the brakes are-releasedthelfrictional sonn t of the bars 30 20 and 31 moving'in eontact %'itb, each other, aided by the .springs..37, ll momentarily retard the withdrawal of the brakesho'es 'and at th'e saniei time will so guide the shoes" f as topidvide for theirsimultaneouswith-' 2.5 drawal at allpoin'ts from the trend of the wheeland at the same tiine provide for theoperation-of'the slack adjuster 41;

What Iclaim is 1L In a. brake-shoe controller, the combiso-nation of shoe supporting devices arranged to support the-"shoes contiguous to the wheels of opposite ax'les, a frictional'mem-- ber connecting said devices, said devices and .frictional liiernbe'r movable theone with re- 'lation to' the other, and means for holding said'derices' in frictional contacbwith said member, I .2. In a brake-'shoe'controller, the combination ofshoe supporting devices, -a longitudinal frictional member connected to the "shoe'snpporting devices, and meansfor creating friction OnLthe frictional member 'toretardthe 'niovc'ment of the brake shoes.

3. In 'a brakeshoe controller,- the combito support thfe" shoes contiguous to the wheels of opposite axles, a frictional member connecting said devices, said devicesand frictional member movable, the one with relationto the other, andg-a spring-for hold-1 ing said devices in frictional contact with. 'sz'ud member.

45 In a brake-shoe"controller, the combL,

' nation of shoe supportingfdevices, a bar con- 3 :0 necting saiddev ces having guides there n with which said 'supportingfdex'ices engage,

an'dmeans for holding saidzdevlces in frict hon 1" 6; In a bralie-shoe controller, the combinationoi shoe sir porting-devices, a'bar connecting said dev ces, saiditiir havin slots therein with ;whibh iiidfslipportingf evices through said bar, and a spring interposed between said bar, and 'a'stop on said bolt. 7-5 '8 In a brake-shoe controller, the 'combi- Ht't'tlOIt of shoe supporting "devices, a bar-eonnecting said devices having 'slots-a-therein,

bolts passing through said supporting devices and lln'ough-said'plate, washerson said plate, and springs interposed-between said washers, and stops on said bolts 9'.'In a brake-shoe controller, 'theflcoxnbination of-brake beams carrying brake=shoes,,

a barconnecting said brake beams, said beam'smovablealdn said bar, andmeansfor holding said bra e beams in frictional contact with said no.

10. 'In-a bral-:e-sh.oe controller, the combination of brake benms -having downwardly so projecting -portions,; bars connecting said downwardly projecting portions, s'aid do wnwardly projecting port-ions movable along said bar, and means for holding said downwe rd 1 projecting portions in'frietional eon- 9 5 tact with said. bar.-

' 1],. In a brake-shoe controller,.the combination of brake beams, shoes garried thereby, and frictional devieesabo've and below said brake beams tomomenta rilyretard. the withdrawal'of said: shoes from the wheels. l

' 12. In .a' brake-shoe controller, the combination of suspended brake bemns',"shoe's carried thereby, and frictional'deriees"above and belowsaid brake beams to ret'a'r'd the 1 05 withdrawalof said shoes frorn the wheels.

13. Inabrake-shoe controller, the combination of suspended brake-beams, 'sl 1oes"cz'1r- 1 ried thereby," trictio nal devices abote and below said brake beams 'to'inornenta'rily r'e- 11 0 .tard the-withdrawal of said shoesfr'om the wheels, and -gniding means for said'brake beams,

14. In a bi'nke shoe' controller, the combination of shoe snpp'orting'deviees,; a guide .member connectedto s'ai d supporting denation of shoe supporting" devicesabareon- ..-\'Jees, and means ifor'c re'atmg' fllCllOn to l 55 nccting said-detioes, said devices movable on It momentarily retard :the withdrawal" of said. s o twi -th whee s; 1 In testimony whereof," Ifthe sz'ud' VIL'l'IA at G. Pnrc -z, hax' elier'ehnto setmy' hand.

1 WIL IA 'GUNN R me-e.- 

